Railroad frog



March 8, 1938.' M. PIKRCHUK ET AL 2,110,633

RAILROAD FROG Filed Dec. 2o, 1955 .a g2 l in"` D n www 4 l l l l UJI/ml zur.i gH 5 E? E n D f .Z j? /f .fj/7 /17424 f6 I I '.1 *Im @n Patented Mar. 8, 1938 PATENT GEQE RAELR'OADl FRG Michael Pikarchuk and Lina Pkarchuk, Nicholson, Ontario, Canada Application December 20, 1935, Serial No. 55,479

1 Claim.

This invention relates to certainr new and useful improvements in railroad frogs.

The primary object of the invention is to provide a railroad frog wherein a tensioned wing rail is associated with the point of the frog and adapted for automatic shifting movement when engaged by the wheel or flange of a wheel of rolling stock, the cooperating wing rail being anchored to the base plate.

A further object or" the invention is to provide a railroad frog of the foregoing character embodying a particular type of tensioning means for an automatically shiftable wing rail and means for guiding the wing rail during its movement.

With the above and other objects in view that Will become apparent as the nature of the invention is better understood, the same consists in the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawing and claimed.

In the drawing:-

Figure l is a top plan view of a railroad frog constructed in accordance with the present invention, showing the guide means for the tensioned automatically shiftable wing rails;

Figure 2 is a side elevational view;

Figure 3 is an end elevational View looking in the direction of the point rails;

Figure 4 is an opposite end elevational View looking in the direction of the wing rails; and

Figure 5 is a cross-sectional View taken on line 5--5 of Figure 1, showing the tensioning means for the automatically shiftable wing rail associated with both the shiftable and stationary wing rails.

Referring more in detail to the accompanying drawing, the railroad :frog comprises a base plate I having openings ll adjacent opposite side edges for the passage of spikes for anchoring the frog to rai1 tie-s. The side oi the base plate Ill with which the movable wing rail of the frog is associated is provided with a slotted opening l2 providing snow clearance for easier operation and movement of the wing rail.

One end of the base plate l@ has the point rail sections I3 anchored thereto that merge into the frog point lll. A pair of wing rails l5 and IB is operatively arranged at opposite sides of the point lll, the wing rail l5 being anchored to the base plate lll by integral formation theren with as illustrated in Figure ,5, while the wing rail l is automatically shiftable over the base plate relative to the point lil. As shown in Figure 1, the slotted openings l2 extend transq versely into the base plate I a suicient distance to underlie the movable wing rail i6 and with the openings positioned between the supporting ties, the movable wing rail acting to clean and scrape the snow from the base plate 5 and direct the snow through the slotted openings. The tensioning means for normally retaining the automatically shiftable wing rail l5 in position adjacent the point I4 is shown more clearly in Figure 5 and includes a rod ll trans- 1U Versely slidable through the wing rails l 5 and I6. A cup member I8 is mounted on each end of the rod Il with the latter slidable therein, the bottom wall I9 of the cup member i8 being engaged with the outer face of the adjacent wing rail. 1.5 A coil spring 2t surrounds each end of they rod Il' within the cup member i8 and is tensioned by means of the plug 2| engaged with the outer end thereof and adjusted on the threaded end of the rod Il by means of the nut 22. The 20 spring members 2U at the outer sides of the wing rails l5 and I6 cooperate with said wing rails for tensioning the wing rail i6, the springs centering the rod l1 and automatically moving the wing rail it toward the frog point ill. 25

The wing rail it is guided in its movement by means of pins 23 projecting outwardly thereof and extending through guide straps 24, the buier or stop 25 rising from the base plate lil cooperating with the guide straps 24 for limiting move- 30 ment of the wing rail I6 away from the frog point I4.

From the above detailed description of the invention, it is believed that the construction and operation thereof will at once be apparent, it 35 being noted that the wing rail i5 is doubly tensioned by the spring devices 20 associated with the outer sides of the wing rails l5 and l. Tension springs 2B are housed within the cup members i8 for protective purposes. The blocks 2l func- 40 tion to exclude snow or other foreign matter from the cup members Hl for the protection of the spring members 20.

While there is herein shown and described the preferred embodiment of the invention, it is 45 nevertheless to be understood, that minor changes may be made therein without departing from the spirit and scope of the invention as claimed.

We clairnz- 50 In a railroad frog, a base plate, point rails on the base plate leading to a point, a wing rail on the base plate at each side of the point, one of the wing rails being stationary and integral with the base plate between the side edges thereof, 55

the other Wing rail being slidable on the base plate and movable towards and avva7 from the point, the side of the base plate beneath the movable wing rail being providedy with snow clearing transversely extending slotted openings with the openings extending inwardly from the edge of the base plate to points beneath the movable Wing rail, guide members on the base plate outwardly of the movable Wing rail, guide pins on the movable wing rail extending into the guide members, a buffer stop on the base plate intermediate the guide members adapted to limit out- Ward movement of the movable wing rail, a rod transversely slidable through the wing rails, a

cylindrical cup member on each projecting end of the rod having a bottom Wall engaged with the adjacent Wing rail, a spring surrounding each end of the rod within the cup member, a block on each end of the rod of slightly smaller diameter than the cup member extending into the open outer ends of the cup members for tensioning the springs for normally retaining the movable Wing rail in engagement With the point and for substantially closing the outer ends of the cup members to prevent entrance of snow or the like therein.

MICHAEL PIKARCHUK.

LINA PIKARCHUK. 

